Dim FSO As Object, oFolder As Object, StrFolds As String
 
Sub Main()
Dim TopLevelFolder As String, TheFolders As Variant, aFolder As Variant, i As Long
TopLevelFolder = GetFolder
If TopLevelFolder = "" Then Exit Sub
StrFolds = vbCr & TopLevelFolder
If FSO Is Nothing Then
  Set FSO = CreateObject("Scripting.FileSystemObject")
End If
'Get the sub-folder structure
Set TheFolders = FSO.GetFolder(TopLevelFolder).SubFolders
For Each aFolder In TheFolders
  RecurseWriteFolderName (aFolder)
Next
'Process the documents in each folder
For i = 1 To UBound(Split(StrFolds, vbCr))
  Call UpdateDocuments(CStr(Split(StrFolds, vbCr)(i)))
Next
End Sub
 
 
Sub RecurseWriteFolderName(aFolder)
Dim SubFolders As Variant, SubFolder As Variant
Set SubFolders = FSO.GetFolder(aFolder).SubFolders
StrFolds = StrFolds & vbCr & CStr(aFolder)
On Error Resume Next
For Each SubFolder In SubFolders
  RecurseWriteFolderName (SubFolder)
Next
End Sub


Sub UpdateDocuments(oFolder As String)
Application.ScreenUpdating = False
Dim strInFolder As String, strOutFold As String, strFile As String, wdDoc As Document
strInFolder = oFolder
strFile = Dir(strInFolder & "\*.docx", vbNormal)
'Check for documents in the folder - exit if none found
If strFile <> "" Then strOutFold = strInFolder & "\Output\"
'Test for an existing outpfolder & create one if it doesn't already exist
If Dir(strOutFold, vbDirectory) = "" Then MkDir strOutFold
strFile = Dir(strInFolder & "\*.docx", vbNormal)
While strFile <> ""
  Set wdDoc = Documents.Open(FileName:=strInFolder & "\" & strFile, AddToRecentFiles:=False, Visible:=False)
  With wdDoc
    With .Range.Find
      .ClearFormatting
      .Replacement.ClearFormatting
      .Forward = True
      .Wrap = wdFindContinue
      .Format = False
      .MatchCase = False
      .MatchWholeWord = False
      .MatchWildcards = False
      .MatchSoundsLike = False
      .MatchAllWordForms = False
      .Text = "["
      .Replacement.Text = "~"
      .Execute Replace:=wdReplaceAll
      .Text = "]"
      .Replacement.Text = "~"
      .Execute Replace:=wdReplaceAll
      .MatchWildcards = True
      .Text = "~*~"
      .Replacement.Text = " "
      .Execute Replace:=wdReplaceAll
    End With
    'Save and close the document
    .SaveAs FileName:=strOutFold & .Name, AddToRecentFiles:=False
    .Close
  End With
  strFile = Dir()
Wend
Set wdDoc = Nothing
Application.ScreenUpdating = True
End Sub
 
Function GetFolder() As String
Dim oFolder As Object
GetFolder = ""
Set oFolder = CreateObject("Shell.Application").BrowseForFolder(0, "Choose a folder", 0)
If (Not oFolder Is Nothing) Then GetFolder = oFolder.Items.Item.Path
Set oFolder = Nothing
End Function